Roanoke City calls it a window connecting Roanoke with the rest of the country. Now, “StarCam” is back on line. It snaps a picture of the valley every 15 seconds, including whoever is on the Mill Mountain Star overlook at the time. “StarCam” had to be taken down for repairs in September. City Public Information Officer Melinda Mayo says the repairs were designed to make the camera less susceptible to harsh weather. Mayo says “StarCam” has been a popular feature and “an ambassador for Roanoke,” attracting more than 100,000 on-line visitors in each of the past two years.